All around the world, Kosow (Kosow 
, Косов 
) is a very rare boy's forename. The first name Kosow is characteristic of Eastern Europe, particularly Belarus, where it is a rare boy's name. Much more frequently, Kosow is the last name as well as the forename.
Mr, Jason, Nancy, Edgar, Heidi, Fabio, Walid, Wilma, Marvin, Sophie, Dolly, Andrew, Kelley, Patryk, George, Jordan, Jeanne, Justin, Judith, Tomasz, Mallory, Carmen, David, Randy, Keith, Ms, Kim, Leo, Lee, Mary, Mike, Alan, Curt, Paul, Ross, Roni, Ryan, Dean, Leah, Lisa, Jane, Jean, Jill, Maria, Marta, Kasim, Michele, and Sheldon